Number worksheet — GCSE Foundation

1.Work out (−3) × 4 + 2 × (−5)

2.At a swimming pool the ratio of adults to children is 3 : 5. Of the children, 2/5 are boys. What fraction of the people at the pool are boys?

3.Write 45,000 in standard form.

4.Work out −6 × (−3).

5.Write these numbers in order, starting with the smallest: 5, −8, 0, −3, 2

6.Work out 250 ÷ 1000.

7.A quiz has 50 questions. Freya answers 10% of them incorrectly. Work out how many questions she answers incorrectly.

8.Write '3.2 million' as a number in figures.

9.A cyclist rides at a steady speed of 8 metres per second. Work out this speed in kilometres per hour.

10.The number 72 can be written as 2³ × 3², and the number 108 can be written as 2² × 3³. Work out the highest common factor of 72 and 108.

11.A quarter-circle has a radius of 6 cm. Work out the exact perimeter of the quarter-circle, giving your answer in terms of π.

12.A student always writes the digits after the decimal point over a denominator of 100, whatever the number of decimal places. Using this wrong rule, they convert 0.9 to a fraction. Work out the correct fraction that 0.9 is equal to, giving your answer in its simplest form.

13.A window display has red baubles, gold baubles and green baubles in the ratio 4 : 5 : 6. What fraction of the baubles are not green?

14.Work out the value of 2⁻⁴

15.Priya adds 3.6 and 0.45 on paper and writes down 3.65 as her answer. Work out the correct value of 3.6 + 0.45.